We have a program that compiles executables into a folder into c:\bin. Ideally I would like to share this folder so users can access the exe's within but stop them creating any other files in there. The reason for this is to stop users grabbing source code and putting it in a shared drive then taking it.

We have a Domain Controller setup and all the users belong to a specific security group.

Is there any way to achieve this?

EDIT: TO clarify, I need to stop users from creating or moving files INTO the C:\bin folder which are not executables.